Experimental Indicators of Accretion Processes in Active Galactic Nuclei
Abstract
Bright Active Galactic Nuclei are powered by accretion of mass onto the super massive black holes at the centers of the host galaxies. For fainter objects star formation may significantly contribute to the luminosity. We summarize experimental indicators of the accretion processes in Active Galactic Nuclei (AGN), i.e., observable activity indicators that allow us to conclude on the nature of accretion. The Galactic Center is the closest galactic nucleus that can be studied with unprecedented angular resolution and sensitivity. Therefore, here we also include the presentation of recent observational results on Sagittarius A* and the conditions for star formation in the central stellar cluster. We cover results across the electromagnetic spectrum and find that the Sagittarius A* (SgrA*) system is well ordered with respect to its geometrical orientation and its emission processes of which we assume to reflect the accretion process onto the super massive black hole.
Cite
@article{arxiv.1712.06915,
title = {Experimental Indicators of Accretion Processes in Active Galactic Nuclei},
author = {A. Eckart and M. Valencia-S. and B. Shahzamanian and M. Zajacek and L. Moser and G. Busch and M. Parsa and M. Subroweit and F. Peissker and N. Sabha and S. E. Hosseini and M. Horrobin and C. Straubmeier and N. Fazeli and A. Borkar and D. Kunneriath and V. Karas and C. Rauch and S. Britzen and A. Zensus and M. Garcia-Marin and Y. E. Rashed},
journal= {arXiv preprint arXiv:1712.06915},
year = {2022}
}
Comments
16 pages, 4 figures, conference proceeding: Accretion Processes in Cosmic Sources - APCS2016 - 5-10 September 2016, Saint Petersburg, Russia